Table 6. Inter-examiner reliability of measurements made on plaster models (examiners A and B).
* P < 0.05 and *** P < 0.001. ICC: intraclass correlation coefficient; SD: standard deviation; TSALD: tooth size-arch length discrepancy; LII: Little's Irregularity Index; BBL: basal bone length; STS: sum of teeth sizes.
| Variable | ICC | Mean difference | SD | P-value | 95% confidence interval | |
| STS | 0.99 | −0.10 | 0.35 | 0.041* | −0.20 | <0.01 |
| BBL | 0.97 | −0.20 | 0.21 | 0.338 | −0.30 | 0.25 |
| TSALD value | 0.98 | −0.12 | 0.38 | 0.174 | −0.18 | 0.03 |
| LII | 0.99 | −0.08 | 0.18 | <0.001*** | −0.13 | −0.03 |
| Partial Bolton | 0.92 | −0.24 | 1.09 | 0.271 | −0.69 | 0.20 |
| Overall Bolton | 0.95 | −0.22 | 0.78 | 0.926 | −0.34 | 0.31 |